.logotipo {
    margin-left: -100px; /* metade da largura */
    margin-top: -100px; /* metade da altura */
    position: absolute;
    top: 50%;
    left: 50%;
}

.login {
    position:absolute;
    top:100px;
    left:700px;
    margin-top:-100px;
    margin-left:-180px;
    width:380px;
    border:0px;
    
}